JP2006060479A - Windshield cover for microphone - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a windshield cover for a microphone with a simple structure that is not easily withdrawn from a microphone side and excellent in the waterproof performance. <P>SOLUTION: The windshield cover 11 is composed of: a windshield main body section 12 a base end 13 of which includes an opening 14 from a tip of which a microphone M is introduced and for covering an outer circumferential face of the microphone M while permitting passing of external sound; an in-flock layer 22 formed by applying electrostatic flocking of many short fibers 23 to an inner side face 15 located near the base end 13 of the windshield main body 12 and opposed to an outer circumferential face of the microphone M; an end face flock layer 24 formed consecutively to the inner flock layer 22 by similarly applying electrostatic flocking of many short fibers 25 to an open end face 16 forming the opening 14; and an outer flock layer 26 formed consecutively to an end face flock layer 24 by similarly applying electrostatic flocking of many short fibers 27 to an outer side face 17 near the base end 13 of the windshield main body section 12. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a windshield cover of a microphone that can reliably prevent the microphone from dropping off and rainwater from entering and penetrating into the microphone when attached.

  Since the microphone easily generates wind noise when used in an environment where wind is blowing, it has been conventionally practiced to attach a windshield cover to the outer peripheral surface of the microphone.

  FIG. 3 is an explanatory view showing an example of a conventional windshield cover in relation to a microphone. The windshield cover 1 shown as an end view in the drawing is usually a sponge-like shape having open cells such as foamed polyurethane. The elastic foam is formed. The windshield cover 1 is formed in a bag shape having an opening 3 for introducing the microphone M from the distal end side on the proximal end 2 side.

  The windshield cover 1 is used by being attached so as to hold the outer peripheral surface of the microphone M under a relatively small pressure contact force generated by the elastic action of the material itself.

  However, the windshield cover 1 has a problem that the elasticity of the material itself gradually deteriorates and becomes loose while it is repeatedly attached and detached, or due to aging, and easily falls off from the microphone M side.

As a technique for solving such a problem, for example, as disclosed in Patent Document 1 below, a microphone and a windshield cover are integrated through a locking mechanism to prevent dropping. Has already been proposed.
JP 2000-217177 A

On the other hand, among conventional windshield covers, as disclosed in Patent Document 2 below, not only wind noise is generated but also rainwater does not penetrate into the microphone when recording outdoors in rainy weather. Those having water repellency have already been proposed.
Japanese Patent Laid-Open No. 11-275672

  However, in the case of the conventional technique disclosed in Patent Document 1, the windshield cover can be easily attached from the microphone side by interposing a locking mechanism. In addition to complicating the attaching / detaching operation, there is a disadvantage that causes a cost increase by duplicating the structure.

  Further, in the case of the conventional technique disclosed in Patent Document 2, since the windshield cover is subjected to water repellent treatment, although it seems that rainwater permeation can be prevented, Since the specific method of the treatment itself is not disclosed, it is not possible to actually test this, and if the water-repellent treatment is performed by applying a waterproof liquid temporarily, the waterproof effect is sustained. Will leave a problem.

  SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and it is an object of the present invention to provide a windshield cover for a microphone that is structurally simple but does not easily fall off from the microphone side and has excellent waterproof performance. There is.

  The present invention has been made to achieve the above object, and has an opening for introducing the microphone from the distal end side on the proximal end side, and allows the passage of external sound, and the outer peripheral surface of the microphone. A windshield main body covering the windshield and an inner flock layer formed by electrostatically flocking short fibers on the inner surface facing the outer peripheral surface of the microphone located at least near the base end of the windshield main body. Main features.

  In this case, it is preferable that the windshield main body is integrally formed as an elastic foam having open cells. The windshield main body includes a reinforcing frame including at least a cylindrical portion disposed on the inner surface near the base end and a flange-shaped portion disposed on the open end surface. A flock layer may be formed on the cylindrical portion.

  Furthermore, you may form the fitting part positioned at the time of the mounting | wearing on the outer surface of the said cylindrical part in a reinforcement frame between microphones. Moreover, it is desirable to form an end face flock layer in which short fibers are electrostatically implanted to be continuous with the inner flock layer at least on the open end face side of the windshield main body. Furthermore, an outer flock layer in which short fibers are electrostatically flocked to be continuous with the end face flock layer can be formed at least on the outer surface side near the base end in the windshield main body. Further, the windshield main body portion subjected to electrostatic flocking can be subjected to water repellent treatment.

  According to the invention according to claim 1 of the present invention, the inner surface of the windshield main body portion is provided with an inner flock layer formed by electrostatically flocking short fibers, so that the windshield main body portion is closely uprighted. In addition, each short fiber is attached to the microphone in a state where it is forced to fall in the direction of feeding (reverse direction) by the microphone, and as a result, a frictional force is generated in a direction to prevent the dropout from Dropout can be prevented.

  According to the second aspect of the present invention, since the windshield main body is integrally formed by the elastic foam having open cells, not only the overall weight can be reduced, but also the attaching / detaching operation with respect to the microphone can be performed. Can also be done more easily.

  Further, according to the invention according to claim 3, the windshield main body portion includes the reinforcing frame, and the inner floc layer is formed on the cylindrical portion of the reinforcing frame, so that the deformation of the windshield main body portion is prevented. Dropping from the microphone can be effectively prevented.

  According to the fourth aspect of the present invention, since the fitting portion that is positioned at the time of attachment is formed on the outer surface of the cylindrical portion of the reinforcing frame between the microphone and the microphone, This can be confirmed by the click feeling generated by the fitting portion.

  According to the invention which concerns on Claim 5, the end surface flock layer which carried out the electrostatic flocking of the short fiber and was made to continue with the said inner flock layer is formed in the open end surface side in which at least the opening part is located in a windshield main-body part. Therefore, it is possible to effectively prevent rainwater from entering from the opening side through the end face flock layer.

  According to the invention according to claim 5, since at least the outer surface side near the base end in the windshield main body portion is formed with an outer flock layer in which short fibers are electrostatically implanted to be continuous with the end surface flock layer, Intrusion of rainwater from the opening side can be more effectively prevented.

  According to the invention of claim 5, since the windshield main body portion on which electrostatic flocking has been performed has been subjected to water repellent treatment, not only the short fibers that are electrostatically flocked and are closely upright repel rainwater. The water repellent treatment can reliably prevent rainwater from penetrating from the outer surface side to the microphone side.

  FIG. 1 is an enlarged explanatory view with a part omitted showing an example of the present invention (shown as an end view for convenience of explanation) in relation to a straight type microphone that is an attachment object.

  According to the figure, the entire windshield cover 11 has an opening 14 on the base end 13 side for introducing the microphone M from the front end side, and permits the passage of external sound to the outer peripheral surface of the microphone M. A windshield body 12 covering the windshield, and an inner flock layer formed by electrostatically flocking a plurality of short fibers 23 on an inner surface 15 located near the base end 13 of the windshield body 12 and facing the outer peripheral surface of the microphone M 22, an end face flock layer 24 formed by electrostatically flocking a plurality of short fibers 25 on the open end face 16 forming the opening 14 and continuing to the inner flock layer 22 side, and a base of the windshield main body 12. Similarly, a large number of short fibers 27 are electrostatically implanted on the outer surface 17 near the end 13 and are formed with an outer flock layer 26 that is continuous with the end surface flock layer 24 side.

  In this case, the windshield main body 12 has a volume that can completely wrap the microphone M with a light pressure force by a bag-like elastic foam having open cells (for example, a synthetic resin foam such as foamed polyurethane). The inner space 17 is secured and the whole is integrally formed.

  Moreover, the windshield main body 12 after the inner flock layer 22, the end face flock layer 24 and the outer flock layer 26 are formed is subjected to water repellent treatment by an appropriate method, thereby Waterproofing performance that can effectively prevent rainwater from penetrating into the microphone M is provided.

  The water repellent treatment performed in this case is performed by immersing the entire windshield main body 12 in a waterproof liquid of appropriate components, or a waterproof spray liquid on the outer surface side including the outer flock layer 27 of the windshield main body 12. A technique such as coating is used.

  On the other hand, FIG. 2 is an end view showing another example of the present invention. The entire windshield cover 11 is composed of the windshield main body 12 shown in FIG. 1 and the inner surface 15 near the base end 13 of the windshield main body 12. The reinforcing frame 32 is disposed at a portion reaching the open end surface 16, the inner flock layer 22 formed on the reinforcing frame 32 side, and the end surface flock layer 24 continuous therewith.

  In this case, the reinforcing frame 32 made of a synthetic resin material or a metal material has a cylindrical portion 33 arranged in a positional relationship facing the inner side surface 15 formed slightly thinner near the base end 13 of the windshield main body portion 12; The windshield cover 34 is formed by a hook-shaped portion 34 arranged in a positional relationship facing the open end surface 16, thereby preventing the windshield main body portion 12 from being deformed and effectively preventing the microphone M from falling off. 11 can be deposited.

  Although not shown in the drawings, a fitting portion that is positioned at the time of attachment can be formed on the outer surface of the cylindrical portion 33 of the reinforcing frame 32 between the reinforcing member 32 and the microphone M. . The fitting portion in this case is formed by providing a headband shape or a partially raised portion in the circumferential direction of the cylindrical portion 33 and providing a concave portion corresponding to the circumferential direction of the facing position when the microphone M is attached. be able to. The fitting portion can also be formed by providing a concave portion on the cylindrical portion 33 side and a raised portion on the microphone M side.

  Next, the operation of the present invention having the above-described configuration will be described with reference to FIG. 1. The windshield cover 11 has the opening 14 of the windshield main body 12 positioned on the tip side of the microphone M to be attached. By introducing this into the internal space 17, it can be smoothly deposited.

  In this case, since the windshield cover 11 is integrally formed of the elastic foam body with the windshield main body 12, the microphone M is fed into the internal space 17 of the windshield main body 12 under a state where the windshield main body 12 is stretched to some extent. The overall weight can be easily reduced while reducing the weight.

  In addition, the windshield cover 11 is formed with an inner flock layer 22 formed by closely standing a large number of short fibers 23 near the base end 13 of the windshield main body 12. For this reason, when the microphone M is introduced into the internal space 17 of the windshield main body 12, the windshield cover 11 forms the inner flock layer 22 and the numerous end fibers 23 that are closely upright in the feeding direction. In this state, it is attached to the microphone M side.

  In other words, the windshield cover 11 presses the windshield main body 12 lightly against the microphone M side, and each short fiber 23 in an upright state is forced to fall in the feeding (reverse direction) direction by the microphone M. As a result, it is possible to effectively prevent the microphone M from coming off due to the frictional force in the direction of preventing the dropout generated at the time of deposition.

  Moreover, since the windshield cover 11 also includes an end face flock layer 24 that is continuous with the inner flock layer 22, rainwater is repelled by a large number of short fibers 26 that constitute the end face flock layer 24 and are closely standing upright. This action can effectively prevent rainwater from entering the internal space 17 from the opening 14 side of the windshield main body 12.

  Furthermore, since the windshield cover 11 after electrostatic flocking has been subjected to water repellent treatment, the water repellent action exerted by this ensures the penetration of rainwater from the outer surface side to the microphone M side during deposition. Can be prevented.

  On the other hand, when it becomes necessary to remove the windshield cover 11 from the microphone M for some reason, even when the microphone M is pulled linearly in the removal direction, the respective short fibers 23 fall in the direction opposite to the pulling direction. It cannot be pulled out easily due to the generated frictional force in the drop-off prevention direction.

  However, when the microphone M is rotated in the circumferential direction, each short fiber 23 is also laid down so as to fly in the rotation direction, and the conventional frictional force is weakened. It can be easily removed from the windshield cover 11 side.

  Further, according to another example of the present invention shown in FIG. 2, the windshield cover 11 is formed by arranging the reinforcement frame 32 near the base end 13 of the windshield main body 12, and therefore, the reinforcement cover 32 is interposed therebetween. Thus, the windshield main body 12 can be securely attached to the microphone M side while preventing the deformation.

  Moreover, the cylindrical portion 33 constituting the reinforcing frame 32 is formed with the inner flock layer 22, and the flange portion 34 is formed with the end surface flock layer 24 continuous with the inner flock layer 22. From the inner flock layer 22, it is possible to obtain an excellent anti-extraction preventing effect based on the reasons already described, and from the end face flock layer 24 to obtain an effect that can effectively prevent rainwater from entering from the opening 14. It will be possible.

  Further, when the fitting portion can be formed between the outer side surface of the cylindrical portion 33 in the reinforcing frame 32 and the microphone M when the windshield cover 11 is attached, Since the suitability of the state can be confirmed by the click feeling generated by the fitting portion, the windshield cover 11 can be attached to the microphone M with the correct positional relationship, and the attached state can be more reliably confirmed. It can also be.

  The above is the description of the present invention based on the illustrated example, and the specific embodiment thereof is not limited to this. For example, the shape of the windshield main body portion may be any shape that matches and matches the shape of the microphone. For example, if the overall shape of the microphone exhibits a spherical shape, a spherical shape that corresponds to this shape is provided. be able to.

  Further, the inner flock layer can be formed in an entire partial area other than an appropriate partial area on the inner side surface of the windshield main body, and the outer flock layer can also be formed in a partial area on the outer side surface of the windshield main body. It may be formed in the entire region. In addition, when the outer flock layer is formed over the entire outer surface of the windshield main body, it is possible to effectively repel rainwater with a large number of short fibers even without performing a water repellent treatment. A waterproof effect can also be obtained.

The expanded explanatory view which abbreviate | omitted a part which shows an example of the windshield cover which concerns on this invention in relation to the microphone with which this is mounted | worn. The enlarged end elevation which shows the other example of the windshield cover which concerns on this invention. An explanatory view showing an example of a conventional windshield cover in relation to a microphone.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Windshield cover 12 Windshield main-body part 13 Base end 14 Opening part 15 Inner side surface 16 Open end surface 17 Outer side surface 18 Inner space 22 Inner flock layer 23 Short fiber 24 End surface flock layer 25 Short fiber 26 Outer flock layer 27 Short fiber 32 Reinforcement frame 33 Cylindrical part 34 Guttered part M Microphone

Claims (7)

A windshield main body having an opening for introducing the microphone from the distal end side on the proximal end side thereof and allowing the external sound to pass and covering the outer peripheral surface of the microphone;
A windshield of a microphone, characterized in that the windshield body is formed of an inner floc layer formed by electrostatically flocking short fibers on an inner surface facing the outer peripheral surface of the microphone and positioned at least near the base end of the windshield main body. cover.   2. The microphone windshield cover according to claim 1, wherein the windshield main body portion is made of an elastic foam integrally formed with open cells.   The windshield main body is provided with a reinforcing frame including at least a cylindrical portion disposed on the inner surface near the base end and a flange-shaped portion disposed on the open end surface, and the inner floc layer The windshield cover for a microphone according to claim 1 or 2, wherein the is formed on the cylindrical portion.   The microphone windshield cover according to claim 3, wherein a fitting portion that is positioned at the time of mounting is formed between the outer surface of the cylindrical portion of the reinforcing frame and the microphone.   The microphone according to any one of claims 1 to 4, wherein an end face flock layer in which short fibers are electrostatically implanted to be continuous with the inner flock layer is formed on at least an open end face side of the windshield main body. Windshield cover.   6. The windshield cover for a microphone according to claim 5, wherein an outer flock layer in which short fibers are electrostatically implanted to be continuous with the end face flock layer is formed on at least the outer surface near the base end in the windshield main body. The windshield cover for a microphone according to any one of claims 1 to 6, wherein a water repellent treatment is applied to the windshield main body portion on which electrostatic flocking has been performed.

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